Astronomy Flashcards

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1
Q

Ptolemy

A

He was a greek astronomer who wrote a book that combined all of the ancient knowledge of astronomy that he could find.

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2
Q

Copernicus

A

He was a polish astronomer that published a new theory that would eventually revolutionize astronomy.

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3
Q

Brahe Tycho

A

He was a danish astronomer who sued several large tools to make the most detailed astronomical observations that had been recorded so far.

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4
Q

Kepler Johannes

A

Johannes was Tycho’s assistant. After Tycho passed away he realized that all the planets revolved around the sun.

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5
Q

Galileo

A

Galileo di Vincenzo Bonaiuti de’ Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath, from Pisa.

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6
Q

Newton, Isaac

A

Sir Isaac Newton PRS was an English mathematician, physicist, astronomer, theologian, and author who is widely recognised as one of the greatest mathematicians, physicists and most influential scientists of all time.

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7
Q

Hubble, Edwin

A

Edwin Powell Hubble was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology.

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8
Q

Ursa major

A

Ursa Major is a constellation in the northern sky, whose associated mythology likely dates back into prehistory.

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9
Q

Usra minor

A

Ursa Minor, also known as the Little Bear, is a constellation in the Northern Sky.

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10
Q

Orion

A

Orion is a class of partially reusable crewed spacecraft to be used in NASA’s Artemis program.

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11
Q

Canis major

A

Canis Major is a constellation in the southern celestial hemisphere.

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12
Q

Cassiopeia

A

Cassiopeia is a constellation in the northern sky named after the vain queen Cassiopeia, mother of Andromeda, in Greek mythology, who boasted about her unrivaled beauty.

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13
Q

Red giant

A

A red giant is a luminous giant star of low or intermediate mass in a late phase of stellar evolution.

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14
Q

White dwarf (not a caucasian little person)

A

A white dwarf is what stars like the Sun become after they have exhausted their nuclear fuel.

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15
Q

Main-sequence star

A

In astronomy, the main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness.

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16
Q

Supernova

A

A supernova is a powerful and luminous stellar explosion.

17
Q

Black hole

A

A black hole is a region of spacetime where gravity is so strong that nothing can escape from it.

18
Q

Parallax

A

Parallax is the apparent displacement of an object because of a change in the observer’s point of view.

19
Q

Light-year

A

Light-year is the distance light travels in one year.

20
Q

Polaris (the star)

A

Polaris is a star in the northern circumpolar constellation of Ursa Minor.